Be/dev

backend/Cargo.toml

@@ -1,7 +1,7 @@
 [package]
 name = "backend"
 version = "0.1.0"
-edition = "2024"
+edition = "2021"
 
 [dependencies]
 tokio = { version = "1", features = ["full"] }
@@ -17,3 +17,7 @@ serde_json = "1.0.142"
 [dev-dependencies]
 tokio = { version = "1", features = ["full"] }
 rand = "0.8"
+
+[[bin]]
+name = "backend"
+path = "src/main.rs"

backend/Dockerfile

@@ -0,0 +1,28 @@
+# 1. ビルドステージ
+FROM rust:1.84 as builder
+WORKDIR /usr/src/app
+
+COPY ./Cargo.toml ./Cargo.lock ./
+RUN mkdir src && echo "fn main() {}" > src/main.rs
+RUN cargo build --release
+RUN rm -rf src
+
+COPY . ./backend
+WORKDIR /usr/src/app/backend
+RUN cargo build --release
+
+# 2. 実行ステージ
+FROM debian:bookworm-slim
+RUN apt-get update && apt-get install -y ca-certificates && rm -rf /var/lib/apt/lists/*
+
+WORKDIR /app
+
+# バイナリコピー
+COPY --from=builder /usr/src/app/backend/target/release/backend /app/backend
+
+# データコピー
+COPY ./data /app/data
+
+ENV PORT=3000
+EXPOSE 3000
+CMD ["/app/backend"]

backend/fly.toml

@@ -0,0 +1,26 @@
+# fly.toml app configuration file generated for atcoder-random-picker-be on 2025-08-18T01:08:21+09:00
+#
+# See https://fly.io/docs/reference/configuration/ for information about how to use this file.
+#
+
+app = 'atcoder-random-picker-be'
+primary_region = 'nrt'
+
+[build]
+
+[env]
+  PORT = '3000'
+
+[http_service]
+  internal_port = 3000
+  force_https = true
+  protocol = "tcp"
+  auto_stop_machines = 'stop'
+  auto_start_machines = true
+  min_machines_running = 0
+  processes = ['app']
+
+[[vm]]
+  memory = '1gb'
+  cpu_kind = 'shared'
+  cpus = 1